<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>

    <style>


            /* 1 *  容器 */
            .container{
                width: 900px;
                height: 200px;
                background-color: bisque;
                display: flex;
                

            }

            /* 5 *  内容 */
            .item{
              
                height: 200px;
                border: solid 1px red;
            
            }

            .item01{
               flex:1 ;
            }
            .item02{
                flex:2 ;
            }

    </style>
</head>
<body>
    

    <div class="container">

        <div class="item item01">01</div>
        <div class="item item02">02</div>
        <div class="item item03">03</div>
        <div class="item item04">04</div>
        <div class="item item05">05</div>


    </div>




</body>
</html>